Today, as a joke, my friends pushed me into the men's restroom and held the door shut. As I was trying to push the door open, I heard a voice behind me say, "Wow. Immaturity, huh?" I turned to find a guy taking a dump in one of the urinals. FML

Your luck is . . . ahem, shit.
I've been around a long time and I have been using men's rooms appropriately for many, many years, and I have NEVER seen anyone taking a dump in a urinal.
I'd say the odds of you seeing this in a chance encounter in a men's room are . . .
*lowers sunglasses*
ass-tronomical.

Your luck is . . . ahem, shit.
I've been around a long time and I have been using men's rooms appropriately for many, many years, and I have NEVER seen anyone taking a dump in a urinal.
I'd say the odds of you seeing this in a chance encounter in a men's room are . . .
*lowers sunglasses*
ass-tronomical.

He commented on OP's friends saying they were immature, yet he was shitting in a urinal which also happens to be immature. Most people don't find it funny, just like OP didn't find it funny to be pushed into the men's restroom.